A modern man searching for adventure ended up dead while trying to satify his desire. Without knowing it, he was reborn into a new world as a monster? He's not alive, so does that still counts as reincarnation?

Anyways, the world of Azton was at war. The Demon King declared war upon the all other races, including humans. To fight the threat, humans of each kingdom summoned heros...

And he just killed one. Oop?

Note: This story has a major redo. Maybe a minor one. Or both.